The first DLC for the unique real-time naval strategy game “Oil Rush” features a completely new tower defense game experience, including a tower defense co-op mode. Exploit new strategies with completely new technology tree, assault and defense units. The Oil Rush is never over! New features: 5 challenging Tower Defense maps with relentless waves of furious enemies, a completely new game experience – Tower Defense multiplayer co-op for up to 3 players, new technology tree makes completely new strategies possible, new unit Raider’s Catamaran – great for fast hit-and-run strikes, new tower Heavy Mortar Turret – the ultimate in naval defense.